• Gisolfi issues a call for architects to develop a new design culture of responsibility if we're to save what's left of our planet.

• Prince-Ramus, Croxton, and Toivonen say a "broader vision of design" is needed, "where architects and engineers claim their role in positively changing human behavior, not just advancing building technology."

• Khanna + Kotkin: one says cities are "where we are most actively experimenting with efforts to save the planet from ourselves"; the other argues "why suburbs, not cities, are the answer."

• Rybczynski goes in search of "vernacular landscapes" where even the most ordinary places can "mean whatever we want them to mean" (and even be meaningful).

• Long has high hopes for the new London Housing Design Guide, though "until there are some role models, the entrenched housing industry will find it hard to improve its product."

• Corbu's Chandigarh is showing wear, "but who will care, if access to its most impressive monuments is restricted?"